It took building supplies to construct these energy-saving houses. It took brains, too.
A. other than B. more than C. rather than D. less than
Over the past decades, sea ice in the Arctic as a result of global warming.
A. had decreased B. decreased C. has been decreasing D. is decreasing
The medicine works more effectively you drink some hot water after taking it.
A. as B. until C. although D. if
There is a great deal of evidence that music activities engage different parts of the brain.
A. indicate B. indicating C. to indicate D. to be indicating
The system has been designed to give students quick and easy to the digital resources of the library.
A. access B. passage C. way D. approach
The incomes of skilled workers went up. , unskilled workers saw their earnings fall.
A. Moreover B. Therefore C. Meanwhile D. Otherwise
